Strap for box-fastenings or the like



W. D. KIMB-ALL.

STRAP FOR BOX FASTENINGS OR THE LIKE.

. APPLICATION FILED JAN. '26 I917.

Patentd May 3,1921.

efiiz zio r [dub- 0 MM UNITED STATES PATENT OFFICE- WALLACE D. KIMBALL,or CHICAGO, ILLINOIS, ASSIGNOR T0 SIG-NODE SYSTEM INCORPORATED.

STRAP FOR BOX-FASTENINGS OR THE LIKE.

Specification of Letters Patent.

Application filed January 26, 1917. Serial No. 144,626.

T 0 all whom it may concern:

Be it known that I, WALLACE D. KIM- BALL, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Strapsfor Box-Fastenings or the like, of which the following is aspecification, reference being had to the accompanying drawing, formingpart hereof. i

This invention relates to box fastenings or the like, wherein a metalstrap is drawn tightly about the box or package to'be secured and theoverlapping ends of the strap are crimped together or otherwise secured,so as to afford a strong, inexpensivefastening having great tensilestrength. These straps are generally applied to boxes or.

other packages by hand machines, which tighten the strap about the box,causing its ends to overlap, the overlap increasing as the ends bendforward under'the influence of the machine, the strap slidinglongitudinally over itself until sufficient overlap is effected to becrimped.

I have found in practice that the plain strap such as he'retofore usedis troublesome because the overlapping portions of the strap are apt toget out of alinement so that the overlapping ends of the strap arecrossed. This makes'the application of the crimping band hard and putsuneven tension .upon the two sides of the strap, and is otherwiseobviously extremely objectionable.

Another disadvantage of the plain strap heretofore used is that withthis form of strap it is comparatively easy to slide the strap along abox or package, particularly if the surface of the latter is smooth,this being an objectionable feature where the straps are placed quitenear the ends of the package, because it introduces the possibility thatunder sudden jerks or strains a strap may slide off one end of thepackage.

It is an object of the present invention to overcome these and otherdisadvantages of the straps heretofore employed, by makwhich areslidably locked together as the strap is being applied so that it isimpossi ble for them to become crossed as the strap is being applied tothe box or package, and

mg a strap the two overlapping ends of to do so by a change in theconfiguration of zhe strap and without attaching extra par 5.

Another feature of the invention is to provide a strap of the characterdescribed 1n. which the sliding of the strap along the box or package isrendered impossible.

Other objects and advantages will appear as the description to followproceeds.

In the drawings F gure l is a perspective view of one embodiment of mystrap shown as applied to a box.

Fig. 2 is a cross-sectional view of the same embodiment.

Fi s. 3, 4, and 5 are cross-sectional views of ot er modifications.

My improved strap in its preferred modificatlon' comprises two wingportions 1, between which is a raisedrib 2. The wing portions 1 areslightly inclined downwardly from the normal plane of the strap. By thisconstruction, the two ribs 2 upon the two overlapped ends of the strapas it is applied to a box or the like will. nest one within the other,thus holding the strap positively and securely is tightened and therespective overlapping ends pushed farther along each other by the"machine, so that it is mechanically impossible for the overlapping endsto become crossed in the application of the strap td a box. The ribsalso prevent the strap from getting out of its proper alinement iii/themachine, both sections of the strap being held firmly and correctlyguided in the machine by the ribs 2. V

The wings 1, being inclined downwardly, will cause an edge pressure onthe box or package at either edge of the strap even though under thetension employed in actual use the strap may lie flat to al'. intentsand purposes. This edge pressure along the two edges of the stra causedby the form thereof will induce t e two edges of the strap to bite, to asmall extent, into the wood or other material of the box or package soas to prevent the strap from being slid sidewise along the box. If thestrap should be forcibly moved sidewise. the two wing portions willobviously bitemore firmly into the wood the further they are distorted.This absolutely prevents the strap With Fig. l.

planation, each of these constructions being adapted to prevent thecrossing of the overlapped portions of the strap and to more or lessprevent SlClGWlSP, movement of the strap upon the box or package in amanner, analogous to that explained above in connection While the otherforms are of utility, I prefer the form shown in Fig. 1 as being themost perfect embodiment of my invention.

Having described my invention, I claim: 1. A boX binder comprising ahard metal strap having a single longitudinal central corrugation, theoutside of sald corrugation.

in one end of the strap being adapted to nest in the inside thereof atthe other end of the strap whereby the strap ends are held againstlateral displacement, but are slidable longitudinally one upon the otherwhen mutually overlapped.

2. A box binder comprising a hard metal stiff and resilient strap,having amid rib and Wings projecting therefrom to form an obtuse angle,opening in the same direction as the angle at the mid rib, whereby whensaid binder is applied to a box under tension the edges of the WingsWill tend to bite into the material of the box.

3. A box binder comprising a hard metal strap having its central regionelevated above the region of itsedges whereby upon application to a boxor the like under tension, the edges Will bear upon the box With greaterpressure than the central region of the strap.

In vvltness whereof I hereunto subscribe my name to this specificationin the presence of tw Witnesses.

WALLACE D. KIMBALL.

Witnesses JOHN M. BATES, C. J. HAYWARD.

